python3数字时钟简单实现
from time import time, localtime, sleep class Clock(object): def __init__(self, hour=0, minute=0, second=0): self._hour = hour self._minute = minute self._second = second @classmethod def now(cls): ctime = localtime(time()) return cls(ctime.tm_hour, ctime.tm_min, ctime.tm_sec) def run(self): self._second += 1 if self._second == 60: self._second = 0 self._minute += 1 if self._minute == 60: self._minute = 0 self._hour += 1 if self._hour == 24: self._hour = 0 def show(self): return "%02d:%02d:%02d" % (self._hour, self._minute, self._second) def main(): clock = Clock.now() while True: print(clock.show()) sleep(1) clock.run() if __name__ == '__main__': main()